Ford YL3Z-4234-CA
Axle Shaft, Rear Passenger Side

Services and repairs of drum brake axle shafts start with vehicle support followed by wheel and tire removal. Begin by separating the differential housing cover and then emptying its lubricant. You should begin service of the differential pinion shaft by unlocking the shaft bolt before moving forward to remove both brake drums and the pinion shaft. Remove the differential pinion shaft with proper caution. When removing U-washers from U-washer grooves avoid denting their rubber O-rings by pushing axle shafts into the internal segment. Remove the two axle shafts while paying attention to avoid hurting the wheel bearing oil seal. Start by applying grease to the wheel bearing oil seal lip and proceed to install the two axle shafts without harming the wheel bearing oil seal. Fit the U-washers onto the button ends of axle shafts after which you must extend the axle shafts outwards. You should use threadlock to coat the new pinion shaft lock bolt before installing the differential pinion shaft by aligning its hole with the case lock bolt hole and then locking it into place with the new bolt. The technique requires reinstalling brake drums followed by differential housing cover and using specified rear axle lubricant to refill the axle housing. Wash away all corrosion, dirt and foreign material at the wheel mounting surfaces and wheel hubs and brake drums to guarantee correct metal contact which stops wheel detaching incidents. The final step includes installing the tire together with its wheel.

The first step for servicing Ford 9.75-inch ring gear axle shafts calls for disabling air suspension power by switching off the air suspension switch placed in the right-hand kick panel to avoid sudden air spring pressure changes. Start by raising and supporting the vehicle before removing the wheels and tires together with the differential housing cover to drain the lubricating fluid. To execute this process you should first discard the brake caliper and disc before removing the differential pinion shaft by removing its lock bolt. When removing the U-washers by pushing axle shafts toward the inside keep rubber O-rings in axle shaft grooves intact to prevent damage. Pull out the two axle shafts while guarding the wheel bearing oil seal from damage. Apply Premium Long-Life Grease XG-1-C or an equivalent Ford specification ESA-M1C75-B to the wheel bearing oil seal lip and then insert the two axle shafts while keeping the rubber O-rings of U-washers intact. Install the U-washers onto the axle shaft button ends before pulling the shafts outward. The differential pinion shaft requires a new pinion shaft lock bolt if one is unavailable along with the use of Thread Lock and Sealer EOAZ-19554-AA or its Ford specification WSK-M2G351-A5 equivalent to secure the bolt after aligning the shaft to the case lock bolt hole. Reinstallation includes braking discs then housing covers followed by required lubricant addition into the rear axle housing before rehanging tires and wheels and lowering the vehicle.

Carefully remove the two axle shafts without damaging the wheel bearing oil seal.

Carefully remove the two axle shafts without damaging the wheel bearing oil seal.

Remove the differential housing cover, followed by the rear brake drums or calipers.

Push the axle shafts inboard to facilitate this process, and then remove the two axle shafts without damaging the wheel bearing oil seal.

Apply a new continuous bead of sealant to the cover, ensuring it is installed within 15 minutes.